2008-2014 Dodge Challenger SRT, RT
2006-2014 Dodge Charger SRT, RT
2006-2008 Dodge Magnum SRT, RT

The Ultimate Evolution of the NAG1 722.6 Automatic Transmission!

This is our MAX effort NAG1 722.6 model.

Engineered for the most demanding applications

  • SHR 300M NAG1 722.6 Input Shaft
  • SHR MOD6 NAG1 722.6 Valve Body
  • ALTO Red Eagle friction material
  • MAX Capacity K3 clutch support
  • MAX duty freewheel clutches
  • MAX duty O-ring and seal kit
  • Mercedes-Benz pan

Our build process…

  • Complete transmission tear down
  • Thorough parts wash
  • Complete and detailed inspection
  • Measure all critical dimensions
  • Full “DRY” stack up build
  • Set friction clearance to SHR specification
  • Valve Body tear down
  • Clean and Inspect valve body
  • Build valve body
  • Bead blast transmission case
  • Final “WET” build

Transmission CORE

SHR will issue a $800 core refund once we recieve a rebuildable transmission core within 30 days of purchase.

If you choose the “I will send in my transmission for build +$0” We will contact you to set up a pickup via truck freight.